<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>签到页面</h1>
    <form action="sign" method="post">
        姓名：<input name="name"> <br>
        学号:<input name="number">
        <input type="submit" value="提交">
    </form>
</body>
</html>